Start over again.
Format (quickly) the internal drive as FAT32.

Then download the last navcore for your device:
[Only registered and activated users can see links. ]

Copy the content of the archive into the device.

For the Loquendo TTS voices, download them from the following links (chose the language you need/like):

French:
[Only registered and activated users can see links. ]
[Only registered and activated users can see links. ]
[Only registered and activated users can see links. ]
[Only registered and activated users can see links. ]

English: (US)
[Only registered and activated users can see links. ]
[Only registered and activated users can see links. ]

Portuguese:
[Only registered and activated users can see links. ]
[Only registered and activated users can see links. ]

English: (UK)
[Only registered and activated users can see links. ]
[Only registered and activated users can see links. ]

German:
[Only registered and activated users can see links. ]
[Only registered and activated users can see links. ]

Italian:
[Only registered and activated users can see links. ]
[Only registered and activated users can see links. ]

Dutch:
[Only registered and activated users can see links. ]
[Only registered and activated users can see links. ]

Deploy the content of each voice archive into the directory "LoquendoTTS".

Maps have to be restored too, off course.